The Third Shinobi World War erupted like a sudden storm, turning the borders of the Land of Fire into a graveyard. While Minato Namikaze was earning his legendary moniker, the "Yellow Flash," by slaughtering a thousand Iwa shinobi in a single breath, Aizen Sosuke was operating in the periphery—the place where the history books forget to look.
Aizen stood on a battlefield littered with the remains of an Uzumaki-controlled outpost. The air was thick with the metallic tang of blood and the lingering ozone of lightning jutsu. But Aizen wasn't looking at the bodies. He was looking at the space between the trees.
"You've been following me for three kilometers," Aizen said, his voice as calm as a lecture in a library. "Your camouflage is impressive, but your 'heartbeat' is far too noisy."
From the shadows of a massive oak, a figure emerged. He wore a swirling orange mask with a single eyehole, and his cloak was tattered. Behind him, a strange, half-white, half-black creature—Zetsu—melted out of the ground.
"You aren't a normal leaf shinobi," the masked man—Obito, posing as Madara—said, his voice artificially deep. "I've watched you. You move like a ghost. And that energy... it's not chakra. What are you?"
Aizen turned slowly. He didn't reach for a blade. He didn't even drop his polite smile. "I am the one who is disappointed, 'Madara.' I expected the legendary ghost of the Uchiha to be more than a boy hiding behind a mask of grief."
Obito froze. The Sharingan in his eye socket whirled with sudden fury. "How do you know that name? Who gave you permission to speak to me?"
"Permission is for those who live within the system," Aizen replied. He adjusted his glasses, and for a moment, the Hogyoku pulsed in response to Obito's Kamui energy. "I know because I see the strings. You think you are the puppeteer of this war, using the Akatsuki and the pain of this world to create your 'Infinite Tsukuyomi.' But you are merely a bird trying to build a nest in a burning tree."
Zetsu hissed, his yellow eyes narrowing. "This one is dangerous, Obito. His soul... it's not human."
"I don't care what he is," Obito growled. He lunged forward, his body becoming intangible as he prepared to warp Aizen into his pocket dimension. "Die in the void!"
Obito's hand passed through Aizen's chest. But instead of the solid resistance of a body or the suction of his Kamui, Obito felt a cold, soul-crushing weight. He looked down. His hand wasn't passing through Aizen—it was being absorbed by a violet, crystalline barrier.
"Bakudo #81: Danku (Splitting Void)," Aizen whispered.
The air between them crystallized into a transparent wall that didn't just block physical attacks, but severed the very space Obito was trying to manipulate. Obito was thrown back, his arm numb, his connection to the Kamui dimension momentarily glitched.
"The 'Void' is my domain, not yours," Aizen said, walking toward the masked man. "You seek a world of dreams because you cannot handle the reality of loss. I seek to destroy the reality of the gods because they are unworthy of my worship."
Aizen raised his hand. A massive pressure descended on the forest, flattening the trees and forcing Zetsu to retreat back into the earth.
"Go back to your cave, little boy," Aizen said, his eyes glowing with a terrifying, ancient violet light. "Tell your 'creator' that Sosuke Aizen has arrived. The moon belongs to no one... but soon, the stars will belong to me."
Obito, shaken to his very core, used his remaining strength to warp away. He had come to recruit a pawn; he had found a god.